An Iranian official says a drone that recently crashed in the country’s southwest was homegrown.

Shush Governor Reza Nejati said the drone was on a regular assignment when it crashed on November 20.

Initial reports suggested that the drone that crashed near the city of Shush was foreign.

Nejati was quoted by Iranian media on November 22 as saying that the Iranian drone crashed because of technical failure.

He said remaining parts of the drone were transferred from the site.

In the past, Iran has claimed to have shot down or captured several U.S. surveillance drones. In December 2011, Iranian officials said they had captured an advanced RQ-170 Sentinel stealth drone controlled by the CIA.

Last year, Tehran claimed it had successfully tested its own drone based on the Sentinel. It has also said it is copying other captured drones.